Curt hilscher



Sept. 6, 1932. c. HILSCHER KNOCK-OVER BIT APPARATUS Filed April 25, 1.950

Fig.2.

Fig.. 5.

Y Inveni'orv- V M/%4 Patented Sept. 6, 1932 UNITED STATES CUR'l HILSCHER, F CHEMNITZ, GERMANY KNOCK-OVER BIT APPARATUS Application filed April 25, 1930, Serial No.

This invention relates to a knock-over bit apparatus for taking the meshes off the needles in cotton machines.

A feature of novelty in this invention resides in the fact that; the movable comb is not itself subdivided but is provided with long and short knock-over bits, separable into groups, for the purpose of preventlng a selected portion of the fabric (i. e.. the middle part or the heel part, as desired) from knitting when making the heel parts and while attaching the foot without taking off the fabric on the respective part of the fonture or injuring it in any way.

A practical embodiment of the invention is represented in the accompanying drawing, in which Figs. 1 and 2 represent a top plan view of the movable comb, provided with long and short knock-over bits in selected arrangements, parts being broken away. 7

Figs. 3, 4, 5 and 6 represent, in side elevation, the position of the movable comb, machine needle, knock-over bits and fabric, during successive stages of the knitting operation.

Figs. 7 and 8 show diagrammatically the effect of this apparatus when used in knitting the heel parts a without the needle part m being thrown off from the needles, or vice versa.

Referring to the drawing it will be seen that the movable comb is provided with sinker bits 6, and with knock-over bits of two different lengths, the longer bits being designated by 0 and the shorter bits by d.

As indicated in Fig. 3 the machine needle 0. first moves to the right, in the direction of the arrow, the movement of the needle in this direction continuing until the stem of the needle has reached a point beyond the end of the shorter knock-over bits cZ,.as shown in Fig. 4.

Upon a continued downward movement of the needle (Fig. 4) the fabric e will come to 447,227, and in Germany March 10, 1930.

lie against the top of the longer knock-over bits 0 wherever such bits are provided, while that part of the fabric opposite the shorter bits (Z will encounter no resistance and will be drawn downwards by the movement of the needle, as appears in Fig. 5. point the needle starts to move toward the inner side of the machine, as indicated by the arrow. In this way it will readily be understood that the fabric is separated into two portions, one of which lies above themovable comb supported by the longer bits 0, while the other portion lies below the comb opposite the shorter bits 0i. i

In Fig. 6 the several parts are shown in their positions as the needle returns upward into its sinking position.

It will be understood that various changes may be resorted to in the form, construction and arrangement of the several parts without departing from the spirit and scope of my invention, and hence I do not intend to be limited to the details herein shown and described except as they may be included in the claims.

What I claim is:

1. A knock-over bit apparatus for taking the meshes ofl'the needles in cotton machines comprising, a movable comb, a group of longer knock-over bits extending along a portion of the comb and projecting at all times into the path of the fabric edge, and a groupof shorter knock-over bits extending along another portion of the comb and adapted to be moved out of the path of the fabric edge, whereby portions of the fabric edge may be brought beneath the shorter bits and retained out of knitting position while knitting continues along the fabric edge above the longer bits.

2. A knock-over bit apparatus for taking the meshes off the needles in cotton machines comprising, a movable comb, a group of longer knock-over bits extending along a portion of the comb and projecting at all times At this into the path of the fabric edge so as to support an edge of the fabric above the lowest position of the machine needles, and a group of shorter bits extending along another por- 5 tion of the comb and adapted to be moved out of the path of the fabric edge so as to permit the edge of the fabric to follow the needles in their downward motion, whereby portions of the fabric edge may be brought beneath the shorter bits and retained out of knitting position while knitting continues along the fabric edge above the longer bits.

In testimony that I claim the foregoing as my invention I have signed my name this 12th 15 day of April, 1930.

CURT HILSCHER. 

